Make these mouthwatering open-faced steak sandwiches at your next picnic or cookout and delight your taste buds! Marinated flank steak meets a robust combination of balsamic vinegar, soy sauce and garlic. Grill it to perfection and top this steak sandwich with Sargento® Sliced Garlic & Herb Jack Cheese, Dijonnaise and quartered peppers for luxurious flavor.